Lucent Technologies MN10285K - Manual (Page 277)

I/O Ports
I/O Port Circuit Diagrams
Panasonic Semiconductor Development Company MN102H75K/F75K/85K/F85K LSI User Manual
276
Panasonic
Figure 11-26 P54/IRQ5/VSYNC (Port 5)
P5PUP4
0: Pullup off
1: Pullup on
P5MD4
P5DIR4
0: Port input
1: Port output
P5OUT4
Pin 0: Port low output
1: Port high output
0: P54/IRQ5
1: IRQ5/VSYNC
P5IN4
Schmidt trigger
IRQ5
VSYNC
P54/IRQ5/VSYNC